NY building explosion

Credit: Getty Images

NEW YORK, NY - MARCH 12: Firefighters from the Fire Department of New York (FDNY) respond to a five-alarm fire and building collapse at 1646 Park Ave in the Harlem neighborhood of Manhattan March 12, 2014 in New York City. Reports of an explosion were heard before the collapse of two multiple-dwelling buildings that left at least 17 injured. (Photo by Justin Heiman/Getty Images)